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Journal articles on the topic 'Gluing technology'
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1
Pak, Andrey, Vyacheslav Оnishchenko, Maryna Yancheva, et al. "Devising a technology for obtaining glued sausage casings from intestinal raw materials using electrophoresis." Eastern-European Journal of Enterprise Technologies 4, no. 11 (130) (2024): 67–75. http://dx.doi.org/10.15587/1729-4061.2024.308603.
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The object of research is the technique for obtaining glued sausage casings, in which adhesive related structures and electrophoresis for tanning are used to glue the layers of intestinal raw materials. Devising a technique for gluing sausage casings from intestinal raw materials with the use of adhesive related structures by stitching by tanning, via intensified electrophoresis, has been substantiated. The technology of glued sausage casings from intestinal raw materials, which are classified as unclaimed residues and waste, has been proposed. The technology differs from known similar technologies by applying a technique for gluing intestinal membranes using an adhesive related construct and electrophoresis during tanning. The devised gluing technique and the device for its implementation make it possible to avoid violation of the integrity of the raw material, are universal in relation to it, and are easy to operate. The rational parameters of electrophoresis, which is used to accelerate the tanning process of the place of gluing of the layers of the intestinal membranes using an adhesive related construct, have been determined. The potential difference between the electrodes and the duration of exposure of the gluing site for gluing the original intestinal raw materials: pork belly, lamb belly, beef belly were determined. At a potential difference of 100 V, the duration of exposure of the gluing site for pork and lamb bellies is 17 minutes, and for beef bellies − 20 minutes. It is noted that the results differ in the duration of exposure of the gluing site, which is probably due to the thickness of the layer of the raw material. The proposed technology would contribute to improving the efficiency of the technology of glued sausage casings from intestinal raw materials and could be used at enterprises for the processing of agricultural products and the meat processing industry
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Kuczmaszewski, Józef, Mariusz Kłonica, Paweł Pieśko, and Ireneusz Zagórski. "Gluing in rapid prototyping technology." Mechanik, no. 12 (December 2015): 974/117–974/120. http://dx.doi.org/10.17814/mechanik.2015.12.569.
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Mardonov, Salokhiddin, Laziz Shokirov, and Khakim Rakhimov. "Development of technology for obtaining starch gluing modified with uzkhitan and hydrolyzed emulsion." Journal of Physics: Conference Series 2094, no. 4 (2021): 042070. http://dx.doi.org/10.1088/1742-6596/2094/4/042070.
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Abstract In this article, in order to reduce the consumption of starch for gluing warp threads and reduce the cost of sizing materials used in sizing and improve the quality of threads, an effective gluing composition was created based on a hydrolyzed acrylic emulsion (GAE) and uzkhitan (chitosan and carboxymethyl cellulose), that is, corn starch polymer and studied their rheological properties. In the article, the main threads passing through the gluing process and moving at a certain speed, which are then impregnated with liquid gluing. Then they pass through a nip roller and a drying drum, are subjected to friction and form a layer of a certain thickness. A theoretical analysis of the surface of the warp threads is carried out to determine the change in the diameter of the threads when a layer of a certain thickness is formed on their surface.
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Petrova, A. P. "Main stages of gluing technology." Polymer Science Series D 7, no. 4 (2014): 293–97. http://dx.doi.org/10.1134/s1995421214040121.
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Dektyarev, A. V., P. G. Zobov, G. R. Dzyunin, and V. N. Morozov. "On Geometry Deviations of the Small Vessel Components Obtained Using Additive Technologies." Proceedings of Higher Educational Institutions. Маchine Building, no. 7 (748) (July 2022): 24–32. http://dx.doi.org/10.18698/0536-1044-2022-7-24-32.
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Currently, there is not enough data on the cumulative error in the geometric characteristics of large-sized objects assembled using the technology of gluing in parts. The hull of the small vessel "Nerl" was chosen as a large-sized object created by the FDM method. The deviations of the diameter along mutually perpendicular planes and the heights of the glued products were measured on the example of test specimens of a cylindrical shape and gluings from them. The field of tolerance for glued products made of polylactide was determined. Recommendations for designing large-sized products when printing in parts by the FDM method were issued. The causes for the appearance of geometric deviations of single parts and gluings are described. The main disadvantages of the FDM method related to manufacturing accuracy are considered. Causes of geometric deviations are divided into three groups. The first is related to the parameters of the product material (thermal expansion coefficient, uniformity of the rod and hygroscopicity), the second is related to its design (multiplicity of linear dimensions, layer height and motor pitch, filling parameters, the presence and size of overhanging elements), the third is related to the features of the additive installation ( calibration along the X, Y, and Z axis, extrusion drive calibration, extrusion unit design, acceleration and travel speed, and nozzle diameter). It was found that preparing the production of 3D printing of a large-sized object using the technology of gluing in parts, for example, the hull of a small vessel, it is necessary to additionally take into account the numerical parameters of the layers of adhesive joints.
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Cheng, Peng Fei, and Guang Hua Nie. "Extraction of Image Features on Tooth Flank Pitting and Gluing." Advanced Materials Research 760-762 (September 2013): 1505–9. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.1505.
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Tooth flank pitting and gluing are principal forms of gear defect. The purpose of this research is to extract the image feature of the gear in the different defects by means of image processing technology. Firstly, the image was carried out denoising processing by median filtering and segmentation processing by use of OSTU method. Then, the pixel area was extracted as a feature to distinguish normal gear, tooth surface pitting and gluing, the inertia was extracted as image feature to detect pitting and gluing by Gray level co-occurrence matrix, and the morphological characteristics of the image were extracted. Image feature extraction of different defect form will help to establish an effective image recognition model.
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L, Solonenko, Repiakh S, Uzlov K, and Ivanova L. "Structured sand-sodium-silicate mixtures gluing with sodium silicate solute." Theory and practice of metallurgy, no. 3, 2021 (April 1, 2021): 48–55. http://dx.doi.org/10.34185/tpm.3.2021.07.
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Purpose – method of gluing with pure silicon silicate solute (SSS) molds and cores made of structured sand-sodiumsilicate mixtures (SSSM) investigation, which solidification has been realized by microwave radiation, and engineering method for calculating the minimum admissible tensile strength of gluing joint for structured mixtures elaboration. Methodology. Quartz sand grade 1K3O3016 and RS (GOST 13078-81) with silicate modulus of 2.9 and specific density of 1.44 g/cm3 has been used in this study. Samples processing that were glued with microwave radiation have been carried out in microwave furnace with nominal magnetron power of 700 and 900W and radiation frequency of 2.45GHz.Mixtures tensile strength has been determined on LRu-2e device using figure-eight samples. Results. Method for minimum admissible tensile strength of gluing joint calculating has been developed. Taking into account its value in casting molds and rods manufacturing development will ensure molten-filled molds integrity and prevent rods displacement or separation installed in them. It has been established that pure silicon silicate solute can be used as gluing material solidifying by microwave radiation for bonding SSSM structured by steam-microwave solidification process (SMS-process).It has not been recommended to use SSS in original form as gluing material solidified by microwave radiation for bonding SSSM structured by convection heat drying. Scientific originality. For the first time, phenomenon of sodium silicate solute and quartz sand saturated with sodium silicate solute in structured SSSM simultaneous transfer during their treatment with steam-microwave radiation and new capillary-porous structures with sodium silicate increased content in them appearance have been established. Practical value. Method for calculating the gluing joint minimum permissible strength under tension will allow to obtain practical data, taking into account which, when casting molds and rods manufacturing technology developing, will ensure molds integrity when they are filled with melt and prevent rods installed in themd is placement or separation. This will generally improve castings quality. Pure SSS applying in casting molds and rods made by SMS-process gluing joints manufacturing will reduce castings production cost due to eliminating of other gluetypes using. Keywords: sodium silicate solute, microwave radiation, mold, rod, mixture, strength, gluing
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Karablikovas, Andrejus. "RESEARCH ON SEAMS FORMATION BETWEEN THE LAYERS OF GLUED BITUMINOUS ROOFING MEMBRANES AND ANALYSIS OF THEIR PARAMETERS." Technological and Economic Development of Economy 13, no. 2 (2007): 134–38. http://dx.doi.org/10.3846/13928619.2007.9637789.
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Durability of roofs has been increased by using polymer bituminous material. The most serious problem is reliability of glued seams between the overlap of layers. By analysing this problem the mechanism of seams formation and impact of gluing technology on properties of durability and maintenance such as strength, thickness and appearance of unglued places are analysed. The final thickness of seams is regarded as an additional criterion for seam evaluation. The dependence of seam strength on heating duration of melted surfaces has been determined experimentally. It was found that the maximum strength of seams is about 15–20 % of bituminous roofing membranes and cannot be increased by a gluing technology. The solutions are suggested as practical means for increasing the durability of flat roof bituminous membranes.
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Solomko, Mykhailo. "Developing an algorithm to minimize boolean functions for the visual-matrix form of the analytical method." Eastern-European Journal of Enterprise Technologies 1, no. 4 (109) (2021): 6–21. http://dx.doi.org/10.15587/1729-4061.2021.225325.
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This research has established the possibility of improving the effectiveness of the visual-matrix form of the analytical Boolean function minimization method by identifying reserves in a more complex algorithm for the operations of logical absorption and super-gluing the variables in terms of logical functions. An improvement in the efficiency of the Boolean function minimization procedure was also established, due to selecting, according to the predefined criteria, the optimal stack of logical operations for the first and second binary matrices of Boolean functions. When combining a sequence of logical operations using different techniques for gluing variables such as simple gluing and super-gluing, there are a small number of cases when function minimization is more effective if an operation of simply gluing the variables is first applied to the first matrix. Thus, a short analysis is required for the primary application of operations in the first binary matrix. That ensures the proper minimization efficiency regarding the earlier unaccounted-for variants for simplifying the Boolean functions by the visual-matrix form of the analytical method. For a series of cases, the choice of the optimal stack is also necessary for the second binary matrix. The experimental study has confirmed that the visual-matrix form of the analytical method, whose special feature is the use of 2-(n, b)-design and 2-(n, x/b)-design systems in the first matrix, improves the process efficiency, as well as the reliability of the result of Boolean function minimization. This simplifies the procedure of searching for a minimal function. Compared to analogs, that makes it possible to improve the productivity of the Boolean function minimization process by 100‒200 %. There is reason to assert the possibility of improving the efficiency of the Boolean function minimization process by the visual-matrix form of the analytical method, through the use of more complex logical operations of absorbing and super-gluing the variables. Also, by optimally combining the sequence of logical operations of super-gluing the variables and simply gluing the variables, based on the selection, according to the established criteria, of the stack of logical operations in the first binary matrix of the assigned function
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Li, Jian Xia, and Liang Cai Wang. "Study on the Brush Plating Technology of Magnesium Alloy." Advanced Materials Research 659 (January 2013): 7–9. http://dx.doi.org/10.4028/www.scientific.net/amr.659.7.
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This article is based on the magnesium alloy brush plating which is pretreated only by electro cleaning and not by activating. The process for brush plating mending of scratched surface of magnesium alloys parts which isn’t pretreated not only by electro cleaning and but also by activating is introduced．The merits of the technology that the plating is directly carried out after gluing the conductor colloid are discussed.
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Mandal, Šaćira, and Aida Šapčanin. "POLYMERIC MATERIALS IN GLUING TECHNIQUES." Journal of Sustainable Technologies and Materials 3, no. 4 (2023): 36–48. http://dx.doi.org/10.57131/jstm.2023.4.6.
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Polymeric materials have an important role in gluing technology due to their broad application in the wood industry, metal industry, glass, and ceramics industry as well as medicine. This article discusses the basic physicochemical aspects of bonding with adhesives and also, the mechanisms of action of the adhesive materials during bonding based on polymerization processes and different types of polymerization. It was emphasized that depending on the material used in gluing, various adhesives with different physicochemical characteristics facilitate and contribute to the quality of the bonded joints. In this way, it is an insured procedure that is suitable for materials that are sensitive to the effects of heat, because welding and soldering would deform the base material and often the total degradation of its mechanical properties.
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Duan Lulin, 段绿林, 刘. 东. Liu Dong, 张与鹏 Zhang Yupeng, et al. "Lidar Data Gluing Technology Based on Hybrid Intelligent Algorithm." Acta Optica Sinica 37, no. 6 (2017): 0601002. http://dx.doi.org/10.3788/aos201737.0601002.
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Demiri, Valjon, Sandra Stranzinger, Paul Rinner, et al. "Gluing Pills Technology: A novel route to multilayer tablet manufacturing." International Journal of Pharmaceutics 548, no. 1 (2018): 672–81. http://dx.doi.org/10.1016/j.ijpharm.2018.07.004.
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Nocetti, Michela, Marco Pröller, Michele Brunetti, George P. Dowse, and C. Brand Wessels. "Investigating the potential of strength grading green Eucalyptus grandis lumber using multi-sensor technology." BioResources 12, no. 4 (2017): 9273–86. http://dx.doi.org/10.15376/biores.12.4.9273-9286.
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The exploitation of Eucalyptus grandis lumber as structural material may take advantage of the finger-jointing and edge-gluing of the boards while they are still wet, so as to reduce the natural susceptibility of the species to warp and split during drying. But the strength grading needed for structural uses, usually performed on dried lumber, should be done before any gluing process, then already in wet condition. Thus, detection and assessment of selected properties of the wet lumber were evaluated. Eucalyptus grandis boards were measured by a multi-sensor machine soon after sawing, then dried and measured again. Destructive bending tests were then performed to determine the mechanical properties of the lumber and several predictive models were compared. The determination of non-destructive parameters by the machine was as effective on fresh as on dry lumber. The dynamic modulus of elasticity was the best single predictor of mechanical properties. In contrast, the knot parameter did not show a correlation between strength and stiffness robust enough to justify the efforts to measure it. Wet grading proved to be as effective as dry grading. Therefore, the study suggests that measuring only dynamic modulus of elasticity on fresh lumber is the best approach for the mechanical grading of Eucalyptus grandis.
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Nosonovskikh, K. V., and M. V. Gazeev. "Improving the technology of gluing solid wood due to the impact of negative air ions." IOP Conference Series: Earth and Environmental Science 949, no. 1 (2022): 012067. http://dx.doi.org/10.1088/1755-1315/949/1/012067.
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Abstract Aeroionization is actively used in various fields of science and industry. It plays an important role for medicine, as it is used for disinfecting premises and has a therapeutic effect on living organisms. This paper discusses the use of aeroionization to intensify the curing of the glue line and improve its quality characteristics. The positive effect of negative aeroins on the process of wood gluing is theoretically described and experimentally confirmed.
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Cheng, R. X. "Study on manufacture method of poplar laminated composite floor by compression densification and gluing technology." Pigment & Resin Technology 43, no. 3 (2014): 145–50. http://dx.doi.org/10.1108/prt-02-2013-0016.
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Purpose – This paper developed a new method of making floor from poplar using glued technology and densification technology. This paper aimed to use fast-grown poplar wood to produce floor to expand material supply range of floor in order to solve problem of material supply shortage for floor industry. Design/methodology/approach – Densification technology and gluing technology were used to obtain high-density surface materials of floor under high pressure, meanwhile in order to reduce loss of poplar wood caused by compressing, high-density surface materials floor and substrate are glued and pressed under low pressure. Findings – The method of compressing poplar wood under high pressure can improve poplar's physical and mechanical properties. Adopting densification technology and gluing technology can produce the poplar laminated composite floor which meets the requirements of Chinese standard GB/T 18103. Research limitations/implications – This method of producing floor by compression densification technology would cause wood loss from reduction in thickness because poplar was pressed under high pressure. Practical implications – This method of making floor from poplar wood concerned in this study allows the floor making industry to eliminate its dependence on precious wood resource, expand supply range of floor material, and then solve problem of wood supply shortage of floor industry. Originality/value – This study may help solve the difficult problem that poplar cannot directly be used to produce floor because of its softness, low density and low strength. Through densification technology, great improvement in strength and hardness of poplar had been made.
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Shu, Yu Feng, and Hai Ying Zhang. "The Shoe Machine Gluing Control System Based on Image Processing." Advanced Materials Research 753-755 (August 2013): 1651–58. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.1651.
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Through an in-depth study of the image processing technology and motion control technology, research and development one glue control system based of image processing for the shoe machine , the system does not need worker repeatedly teach glue path for different shoes, simple operation, and can greatly improve work efficiency.
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Guzii, Sergii, Ihar Bazhelka, and Vasyl Lashchivskyi. "STUDY OF THE INFLUENCE OF COMPOUNDS OF THE ANO3 and ANO3 nH2O TYPES ON RHEOKINETIC AND COLLOID-CHEMICAL PROPERTIES OF ALUMINOSILICATE ADHESIVES FOR WOOD." ScienceRise, no. 5 (November 11, 2020): 14–23. http://dx.doi.org/10.21303/2313-8416.2020.001493.
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In the technology of gluing solid wood, various adhesives are used, which, in addition to ensuring the strength of the gluing, must also be characterized by a number of rheological and colloidal-chemical properties, namely: have acceptable viscosity, low contact angles, have good spreading and enveloping ability, penetrate deep into the wood , providing reliable cohesive-adhesive contact and much more. Today, adhesives based on PVA dispersions and urea formaldehydes are used, the properties of which have been sufficiently studied and tested in practice. An alternative to organic-based adhesives is mineral adhesives, in particular aluminosilicate adhesives, which are non-flammable and have high mechanical strength.
 Object of research: rheokinetic patterns and processes of formation of colloidal-chemical structures of aluminosilicate adhesives modified with compounds of the ANO3 and ANO3×nH2O type.
 Investigated problem: Considering that aluminosilicate adhesives are multiphase reactive suspensions, the viscosity of which changes over time and affects their viability, the issue of viscosity stabilization due to the introduction of electrolyte salts into their composition is relevant, and will also contribute to improving the wettability and spreading of the adhesive during applying them to substrates and gluing samples from various types of wood.
 Main scientific results: The effect of the concentrations of compounds of the ANO3 and ANO3×nH2O type on the rheokinetic and chemical-colloidal properties of the aluminosilicate adhesive has been established, which will make it possible to use aluminosilicate adhesives in practice for gluing wood of various species, as well as to work out possible technological methods of their application, taking into account the obtained data on the viscosity, wetting and spreadability of the modified adhesive on the surface of the wood substrate.
 Area of practical use of the research results: woodworking enterprises for the production of glued solid wood products.
 Innovative technological product: aluminosilicate adhesives modified with ANO3 and ANO3×nH2O nitrate additives for gluing wood of various species.
 Scope of application of an innovative technological product: the application of these approaches will make it possible to obtain glued materials from wood from different species with improved technological and physical and mechanical properties of the glue seam and, accordingly, to increase the quality and reliability of products.
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V, Vignesh, Dhanush K, Elango M, Gokul Kannan M, and Heshvardhan D. "Design and Fabrication of Semi Automatic Paper Bag Making Machine." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (2023): 6999–7003. http://dx.doi.org/10.22214/ijraset.2023.53340.
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Abstract: Despite all known hazards of plastic pollution, it's prevalent and pervasive in India. Polythene bags are major contributors to it. Polythene bag production is easier and cost effective as compared to its eco-friendly alternatives. Paper bags are the closest economical alternative to the polythene bag. This project tries to address several issues that makes paper bag production economically incompetent with polythene bags. Initially the paper bag making process was a manual process, which involves the process of gluing the three sides and cutting the bags one by one, which required a lot time. Then separate machines for feeding, cutting and gluing were invented, which also requires manpower. Now with the help of current day technologies all the three processes feeding, gluing and cutting have been brought under one roof, which requires no manpower. The existing machines in the current day market are based upon PLCs, pneumatic or DPDT switches which can cost around 6-7 lakh rupees and occupy a very large amount of space. This project is made specially to give hands to small scale industries which follow a semi-automatic paper bag making process. This automatic paper bag making machine is also less in weight, which makes it portable. This paper bag making machine will be capable of producing around 720 paper bags an hour. The current number of paper bags that is made per hour is achieved with the help of ESP32 Microcontroller.
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Girn, A. V., M. S. Rudenko, V. B. Taigin, A. E. Mikheev, and D. V. Ravodina. "The effect of laser surface treatment of titanium samples on the adhesive strength of adhesive joints." Spacecrafts & Technologies 6, no. 2 (2022): 90–101. http://dx.doi.org/10.26732/j.st.2022.2.03.
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The article considers the strength of adhesive joints of specimens made of OT-4 titanium alloys, the surface of which has been treated with laser radiation. The paper presents the results of the dependence of the macro- and microgeometry of the obtained surface, chemical composition, wetting angle and adhesion strength of adhesive joints under shear on laser processing modes. The purpose of this work is to determine the optimal parameters of laser processing for obtaining high strength adhesive joints. The results obtained can be used for gluing spacecraft structural elements. The studies were carried out on the adhesive pair «Titan – Titan». Depending on the processing mode, characteristic surface textures were identified, which were combined into groups «B», «K» and «C». High-energy modes of laser surface treatment of samples before gluing lead to a significant increase in the strength characteristics of the adhesive joint (up to 70 %) due to an increase in the area of the gluing surface and mechanical locking of the adhesive in the microrelief of the texture of the samples. In addition, the use of this method, in comparison with mechanical and chemical methods, significantly increases the productivity of surface treatment.
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Magnabosco, Annalisa, Illya Kulyk, Maurizio Avancini, et al. "Optimization of Starch–Tannin Adhesives for Solid Wood Gluing." Polymers 16, no. 12 (2024): 1694. http://dx.doi.org/10.3390/polym16121694.
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Bio-based solutions for solid timber gluing have always been a very sensitive topic in wood technology. In this work, we optimize the gluing conditions of a starch–tannin formulation, which allows high performance in dry conditions and resistance to water dipping for 3 h, allowing for the D2 classification to be reached according to EN 204. It was observed that the starch–tannin formulations enhanced their performance by increasing the heating temperature, achieving satisfactory results at 140 °C for 13 min. The proportion of polyphenols in the mixture enhances the water resistance but is only tolerated until 20–30%. In particular, the addition of 10% tannin–hexamine enhances the water-resistant properties of starch for both quebracho and chestnut extract. The application of the jet of cold atmospheric plasma allows for good results with more viscous formulations, increasing their penetration in wood. Solid-state 13C-NMR analysis was also performed, and the spectroscopic information suggests establishing a coordination complex between starch and tannin.
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Lei, Jian, Chong Lei, and Yong Zhou. "MEMS Technology in the Fabrication of Fluxgate Sensor with Micro-Solenoid Cores." Advanced Materials Research 468-471 (February 2012): 1836–39. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.1836.
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In this paper, we presented a MEMS-based method of manufacturing micro fluxgate sensors. Micro-solenoid coils acting as excitation and sensing elements of the sensors were fabricated by MEMS technology and thick photoresist-based UV-lithography. Different processes were used to fabricate the magnetic cores made of different soft magnetic materials, respectively. Permalloy core was formed by electroplating, whereas gluing and chemical wet etching were adopted in the fabrication of the nanocrystalline alloy core. The two micro fluxgate sensors were characterized by a magnetic field measuring system. The experimental results showed that the micro fluxgate sensors possess high sensitivity, wide linear measuring range and low power consumption.
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Гайдачук, В. Є., В. Ф. Деменко та А. В. Кондратьєв. "ВИЗНАЧЕННЯ МАКСИМАЛЬНОЇ ГЛИБИНИ УТЯЖКИ СУПЕРТОНКИХ НЕСУЧИХ ОБШИВОК СЕНДВІЧЕВОЇ ПАНЕЛІ СОНЯЧНОЇ БАТАРЕЇ КОСМІЧНОГО ЛІТАЛЬНОГО АПАРАТУ". Open Information and Computer Integrated Technologies, № 96 (23 лютого 2023): 141–52. http://dx.doi.org/10.32620/oikit.2022.96.07.
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Continuous dimple of super-thin skins are purely specific defects that are found in the process of sandwich panels manufacturing of spacecraft solar batteries. These types of defects, both in terms of the nature of their appearance and in the aspect of reduction (elimination), are currently receiving close attention. An analysis of this type of defect, which occurs in the process of assembling a sandwich structure by gluing super-thin load-bearing skins and cellular aggregate, has been carried out. A mathematical model was developed to estimate these dimples, which takes into account the thermal expansion of the cladding and cellular aggregate at the temperature of the panel gluing, followed by icing and fixation of the glue in a heated state, and then cooling the glued panel to normal temperature. On the basis of this model, analytical dependences for determining the maximum depth of dimple were obtained. It was shown that continuous dimples have a relatively small value and are an inevitable consequence of the optimal design implementation with the exception of the only parameter - the temperature difference during cooling from the panel gluing temperature to normal. Therefore, the use of glues that polymerize at lower temperatures (as well as binders for the manufacture of panel skins) can reduce the dimple size. The research results allow solving a number of new tasks of the technology of assembling a structures made of polymer composite materials for aerospace engineering and can be used in the production of other precision products for conversion purposes.
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Rech, Jakub, Justyna Wilińska, Aleksandra Borecka, and Artur Turek. "Application of fibrin in drug technology: Achievements and perspectives." Postępy Higieny i Medycyny Doświadczalnej 74 (August 4, 2020): 322–30. http://dx.doi.org/10.5604/01.3001.0014.3442.
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In recent years, fibrin has been successfully used as a polymer drug delivery carrier. Passive properties of fibrin provide parenteral and local delivery of drug substances in controlled and prolonged manner and also tissue support, gluing and sealing. Fibrin also has hemostatic and proangiogenic effects. Discs, films, gels, beads and nanoparticles are among the most commonly proposed and used fibrin-based formulations. It is routinely obtained from fibrinogen and thrombin. Fibrin formulation methods are solution casting, dual syringe systems and emulsification. All fibrin formulations become gel after administration and water absorption. Biodegradation and biocompatibility are important advantages of fibrin, which make it possible to implant a formulation without the need to remove the carrier from the body after the drug is released. Fibrin-based drug delivery systems are proposed and applied in the treatment of wounds, infections and cancerous diseases.
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Sergii, Guzii, Bazhelka Ihar, and Lashchivskyi Vasyl. "STUDY OF THE INFLUENCE OF COMPOUNDS OF THE ANO3 and ANO3 nH2O TYPES ON RHEOKINETIC AND COLLOID-CHEMICAL PROPERTIES OF ALUMINOSILICATE ADHESIVES FOR WOOD." ScienceRise, no. 5 (Special Issue) (October 30, 2020): 14–23. https://doi.org/10.21303/2313-8416.2020.001493.
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In the technology of gluing solid wood, various adhesives are used, which, in addition to ensuring the strength of the gluing, must also be characterized by a number of rheological and colloidal-chemical properties, namely: have acceptable viscosity, low contact angles, have good spreading and enveloping ability, penetrate deep into the wood , providing reliable cohesive-adhesive contact and much more. Today, adhesives based on PVA dispersions and urea formaldehydes are used, the properties of which have been sufficiently studied and tested in practice. An alternative to organic-based adhesives is mineral adhesives, in particular aluminosilicate adhesives, which are non-flammable and have high mechanical strength. <strong>Object of research:</strong> rheokinetic patterns and processes of formation of colloidal-chemical structures of aluminosilicate adhesives modified with compounds of the ANO<sub>3</sub> and ANO<sub>3</sub>×nH<sub>2</sub>O type. <strong>Investigated problem:</strong> Considering that aluminosilicate adhesives are multiphase reactive suspensions, the viscosity of which changes over time and affects their viability, the issue of viscosity stabilization due to the introduction of electrolyte salts into their composition is relevant, and will also contribute to improving the wettability and spreading of the adhesive during applying them to substrates and gluing samples from various types of wood. <strong>Main scientific results:</strong> The effect of the concentrations of compounds of the ANO<sub>3</sub> and ANO<sub>3</sub>×nH<sub>2</sub>O type on the rheokinetic and chemical-colloidal properties of the aluminosilicate adhesive has been established, which will make it possible to use aluminosilicate adhesives in practice for gluing wood of various species, as well as to work out possible technological methods of their application, taking into account the obtained data on the viscosity, wetting and spreadability of the modified adhesive on the surface of the wood substrate. <strong>Area of practical use of the research results: </strong>woodworking enterprises for the production of glued solid wood products. <strong>Innovative technological product:</strong> aluminosilicate adhesives modified with ANO<sub>3</sub> and ANO<sub>3</sub>×nH<sub>2</sub>O nitrate additives for gluing wood of various species. <strong>Scope of application of an innovative technological product: </strong>the application of these approaches will make it possible to obtain glued materials from wood from different species with improved technological and physical and mechanical properties of the glue seam and, accordingly, to increase the quality and reliability of products.
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Gyurika, I. G., and D. May. "Design of a semi-automatic pneumatic opening and closing equipment for gluing and a robotic cell." International Review of Applied Sciences and Engineering 3, no. 1 (2012): 31–39. http://dx.doi.org/10.1556/irase.3.2012.1.4.
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Abstract One of the most important manufacturing steps for efficient modules is the encapsulation of the control circuit and the design of the echelon height and convexity value between the casing and the circuit. The paper presents the current manufacturing technology and the development of tools and technology driven by the customers’ requirements. For this reason, a new gluing tool has been developed in the report including a pneumatic open-close machine and special use of plasma technology designed for decreasing the setting time of the glue. The development includes the design of the workplace, working requirements and the optimisation of the expenses. In the paper the results are reported with specific industrial experiences.
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Разиньков, Egor Razinkov, Чернышев, Aleksandr Chernyshev, Ковешникова, and N. Koveshnikova. "Innovative designs of wood products plating in jointless gluing." Forestry Engineering Journal 4, no. 2 (2014): 192–96. http://dx.doi.org/10.12737/4526.
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The paper discusses the features of design and technology of finger joints in the manufacture of frame-paneled platings of doors and furniture fronts. At the design stage we solve two problems: a) the choice of shapes and sizes of studs and grooves according to GOST R 9330, b) calculation of probabilistic values of the maximum deviations of landings with interference by GOST 6449. It was proposed to abandon the finger joints, restrict ourselves to assembly in tongue and groove, so with conjugation in counterprofiles groove is milled on the ends the horizontal bars after pre-pruning to eliminate chipping and tongue - on inner shared edge of vertical bars.
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Arisandi, Rizki. "A Review: Effect of Heartwood Proportion in Wood Properties." Wood Research Journal 12, no. 2 (2023): 41–45. http://dx.doi.org/10.51850/wrj.2021.12.2.41-45.
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This study aims to examine the effect of heartwood proportion on wood properties for construction materials by reviewing 98 journal articles and non-articles. The data were collected through an online search using seven keywords: heartwood proportion, heartwood effect, physical properties, mechanical properties, wood dimensional stability, wood gluing, and wood preservation. By eliminating the irrelevant papers, 45 journal articles and non-articles were selected. The review shows that the proportion of heartwood has a positive correlation with wood density and dimensional stability. High wood density will have a positive correlation with the mechanical properties of wood. However, the dimensional stability is not only affected by the proportion of the heartwood but also the microfibril angle and the arrangement of the wood cells. Further, sapwood has a higher moisture content than heartwood. The high moisture content causes the wood drying process to take longer and require more energy. However, it should be noted that the heartwood in some Acacia species has a higher moisture content than that in the sapwood, which is commonly called wet heartwood. Therefore, a suitable treatment is needed to minimize the moisture content in the heartwood. In addition, heartwood is difficult to preserve because of the high extractive content in the lumen. The color of the wood is another important indicator to determine the quality of wood, especially the heartwood color, because it is related to the aesthetic value and durability of the wood. Meanwhile, a better understanding of the acid and alkaline properties of extractive substances is necessary to perfectly conduct the wood gluing process.
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He, Rong, Wei He, and Yan Feng Su. "Study on Application of Strengthening Method and its Optimization on Continuous Box Girder Bridge." Advanced Materials Research 243-249 (May 2011): 1553–56. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.1553.
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According to the mechanical characteristics of the continuous box girder bridge and the disaster situation, a combined strengthening method was used to strengthen Yingyugou Viaduct. The 3D numerical simulation method was used to analyze the effectiveness of external prestressing reinforcement technology, external sticking steel plate method, increasing section method and gluing CFRP method. Based on the analysis, the original design scheme was optimized to take advantage of each strengthening method, and improve the overall effectiveness of the combination strengthening method.
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Obućina, Murčo, Goran Turk, Ejub Džaferović, and Jože Resnik. "Influence of Gluing Technology on Physical and Mechanical Properties of Laminated Veneer Lumber." Drvna industrija 64, no. 1 (2013): 33–38. http://dx.doi.org/10.5552/drind.2013.1114.
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Aimasso, Alessandro, Matteo D. L. Dalla Vedova, Alfredo Esposito, and Paolo Maggiore. "Analysis of the fixing process of FBG optical sensors for thermomechanical monitoring of aerospace applications." Journal of Physics: Conference Series 2526, no. 1 (2023): 012072. http://dx.doi.org/10.1088/1742-6596/2526/1/012072.
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Abstract In aerospace, lots of components can be defined as “safety critical”. As a result, it is crucial to early identify the failure precursors when the effects on the systems performances are still practically insignificant. For this reason, complex networks of sensors had been developed and integrated into different parts to monitor several operational parameters, useful for evaluating their health (such as such as temperatures, displacements, vibrations, etc). Clearly, due to the importance of data collected, the technology employed shall be very reliable, even while working in harsh environments. Sensors based on optical fiber Bragg grating (FBG) meet these requirements. However, the fiber’s integration process in the considered system is really crucial, from the moment that it could influence the sensors output. In this regard, gluing the optical sensors is really a critical activity, because the effects of the glue’s retire and its viscous assessment shall be analysed and quantified. In this work, it was done by comparing performances of two equal samples, each one with an FBG glued on it. The first sample was prepared about two months before the second one. Furthermore, data from both FBG have been collected from the gluing phase of the second sample and in the following days. The results showed that the assessment of the resin evolved in different phases, but all of them were united by the fact that the overall process makes sensors measures not reliable during this specific transitory phase. By observing the evolution of the linear fit gradients, it can be stated that the variations reached their maximum in the middle of the gluing process, when the fiber was detached from the tensioning device. Finally, at the end of the overall process, data output resulted stable, so making FBG employable for reliable thermal or strain measures.
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Saroinsong, Aprilia Getroida Tesalonika, Benny Pinontoan, and Chriestie E. J. C. Montolalu. "Crossing Number of Infinite Family of Extension Kochol's Periodic Graphs." d'Cartesian 13, no. 1 (2024): 37–42. http://dx.doi.org/10.35799/dc.13.1.2024.52363.
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At this time, technology is developing very quickly and is increasingly sophisticated. This technological development is certainly closely related to the development of computer technology. A computer is able to control a series of electronic devices using an IC chip that can be filled with programs and logic called microprocessor technology. A microprocessor is a digital component of the VLSI (Very Large Scale Integration) type with very high circuit complexity that is capable of carrying out the functions of a CPU (Central Processing Unit). Among many applications, the problem of crossing number very interesting and important because of its application in the optimization of chip are required in a circuit layout of VLSI. Crossing number used to obtain the lower bound on the amount of chip area of VLSI devices like microprocessor and memory chips additionally, crossings in the circuit layout could cause short circuit and therefore worth minimized independent of the chip area consideration. Some graph can be seen as built by small pieces. A principal tool used in construction of crossing-critical graphs are tiles. In the tile concept, tiles can be arranged by gluing one tile to another in a linear or circular fashion. The series of tiles with circular fashion form an infinite graph family. In this way, the intersection number of this family of graphs can be determined. In this research, has been formed an infinite family graphs The graph formed by gluing together many copies of the tile in circular fashion, where the tile consists of identical tile sections. The results obtained show that the graph has 3-crossing-critical of a graph.
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Berri, Pier Carlo, Matteo D. L. Dalla Vedova, and Paolo Maggiore. "Experimental comparison of Fiber Bragg Grating installation techniques for aerospace systems." MATEC Web of Conferences 304 (2019): 04012. http://dx.doi.org/10.1051/matecconf/201930404012.
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Aircraft systems are becoming more and more complex, as they are required to perform multiple functions. For example, smart systems need to be able to self-monitor their working parameters, in order to infer their health status. All these additional functions require the system to acquire a multitude of measurements; albeit sometimes it is possible to implement virtual sensor techniques, dedicate sensing hardware is usually needed. As a main drawback, the installation of the needed sensors adds up to the total complexity, weight, cost and failure rate of the system. In this context, minimally invasive sensors can be used to measure the system parameters with high spatial resolution and minimal added complexity. One key technology in this field is the Fiber Bragg Gratings (FBG) optical sensors, used to perform strain and temperature measurements. This work describes an experimental campaign intended to assess and validate several installation techniques for FBGs as strain sensors. Two test benches were developed for different measurement setups. One is intended for creep and repeatability tests of a FBG sensor glued at both ends; the other was used to compare point gluing and continuous gluing techniques on an aluminium beam subject to a bending load. Results are compared with numerical simulations of the structure and measurements performed with traditional strain gages.
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Zurauskiene, Ramune, and Lijana Navickiene. "Foam Glass Granule Usage in Tile Glue Mixtures That Use a Reduced Portland Cement Amount." Materials 16, no. 3 (2023): 1269. http://dx.doi.org/10.3390/ma16031269.
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In the last few years, ceramic tiles and tiles from natural rock with higher measurements were used. A huge amount of tile glue is used for high-measurement tile gluing due to a special gluing technology, which is characterized by a thicker glue layer. Due to this, a higher and higher amount of tile glue is used up during decorating. Regular tile glue mixture uses up to about 50–60% cement (according to mixture mass). In carried-out experiments, a lower amount of cement was used in tile glue mixture production (30%). Additionally, 5%, 10%, 15%, 20% and 25% of sand was replaced with small foam glass granules. These granules are made from glass waste. By using foam glass granules, lighter tile glue mixtures were produced, while reducing the cement amount can lower energy usage and CO2 emissions into the atmosphere. The main properties of tile glue were investigated as follows: flow of mixture, density, compressive strength, bending strength, tensile-adhesive strength, slip and water absorption. The properties obtained during the research prove that newly produced tile glue mixtures fulfill all requirements given to these types of mixtures. A total of 25% of foam glass granule from filler mass can be used in tile glue production.
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Umurzakova, Kh. "RESEARCH PROPERTIES OF RAW MATERIALS FOR NEW TYPES MEDICAL BANDAGE." Journal of Science and Innovative Development 4, no. 6 (2021): 69–78. http://dx.doi.org/10.36522/2181-9637-2021-6-8.
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This article presents the topicality of the problem, the sequence of technological processes in manufacture of silk twisted yarn from raw silk used for making of a medical bandage. In order to fold a few threads, and give them a twist, first raw silk is rewound onto a spool. Before rewinding, hanks are checked for gluing, in our case low gluing is determined, therefore, in order to soften the glued spots, the thread is treated with an emulsion by spraying. Then, the raw silk is kept in the common room and is rewound to the two flange reel using the MT-85 machine according to the Japanese technology. The principle of operation and technological drawings are provided. Torsion is carried out by adding 3 raw silk 2,33 tex to give the left twist S 350 tw/m and adding 8 raw silk 3,23 tex with the left twisting S 500 tw/m. The torsion process is performed on a TK-2 twisting machine. The process of fixing the twist of the finished twisted yarns is implemented using Japanese equipment SC-750. The quality indicators of twisted yarn are as follows: linear density, coefficient of variation in linear density, breaking load, breaking elongation, direction and amount of twist, and coefficients of variation in twisting.
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Couderc, Pascal. "Application of 3D PLUS WDoD technology for the manufacturing of electronic modules in implantable medical products." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2017, DPC (2017): 1–30. http://dx.doi.org/10.4071/2017dpc-ta2_presentation4.
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3D PLUS has patented an innovative 3D technology based on the stacking of Know Good Rebuilt Wafers with only Know Good Dies, named WDoDTM. The first 2D steps are those used by the manufacturers of Rebuilt Wafers with well-known eWLBTM technology:- Pick-Flip and Place of KGD from the die wafer on an thermal-release tape on a silicon carrier ( 300 or 200 mm diameter)- Compression molding with epoxy resin with silica fillers- Know Good Rebuilt Wafer grinding in order to decrease total thickness to 250 Âμm or less- Fan-out built-up with Redistribution layer process- This last step can be replaced by interconnection of the die to external sides by “flat” gold wires, in specific conditions The next steps concern the WDoDTM process with edge connection.- gluing of first Know Good Rebuilt Wafer- sequential staking and gluing of Know Good Rebuilt Wafers- dicing of rebuilt and stacked wafers- plating of dicing streets with electroless process All these steps can be collective at the wafer level. Final laser patterning on the plated edges of each module is the final step before electrical test. 3D PLUS has designed with LINANOVA and manufactured two different electronic modules in the frame of a feasibility study of implantable products. These developments were funded by one European project named MANPOWER for a first application dedicated for leadless pacemaker and by a French PIA project (INTENSE) dedicated to neurostimulation for severe conditions, particularly refractory heart failure. Description of these modules is detailed: these modules have several layers including PCB layers including components which cannot be processed with fan out technology. Layers only with bare dies are processed with fan out WLP technology eWLB based or with “falt” gold wires. Top and bottom sides of these modules can be also populated by additional components and allow the interconnexion with other sub-modules. They can also be solderballed in order to be reflow as a BGA components.
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Bula, Serhiy, and Andriy Pelekh. "Comparing the efficiency of strengthening timber beams reinforced with carbon composite rods and plates." Eastern-European Journal of Enterprise Technologies 5, no. 7 (125) (2023): 14–22. http://dx.doi.org/10.15587/1729-4061.2023.287673.
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This study reports the results of experiments comparing the effect of structural reinforcement for timber beams strengthened with different carbon composite materials. Samples of one series were strengthened by gluing a carbon fiber plate from the outside to the face of the beam. The samples of the other series were strengthened by laterally gluing two carbon fiber rods inside the beam. According to the bending research program, the ultimate loads and deflections were determined for both series. As a result of the analysis of the results and comparison with unreinforced samples from the control series, the effect of beam reinforcement and the model of their destruction were determined. Studies have shown that the effect of external reinforcement with a plate was 86.7 % according to the criterion of full failure load, 20.5 % according to the criterion of ultimate load, 13.4 % according to the criterion of ultimate deflection. The effect of rod reinforcement was 48.6 %, 18.6 %, and 4.1 %, respectively. The theoretical analysis of the results showed a convergence of up to 8.2 % with the experimental results. External reinforcement with a plate compared to lateral gluing of rods showed better results due to the placement of the plate in the zone of maximum tensile stresses. This arrangement more effectively limited the spread of ultimate stresses and the development of cracks. The reinforcement parameters of the samples (materials, placement, percentage of reinforcement) were selected under the condition of the same theoretically predicted bearing capacity after reinforcement. However, comparative experimental studies have revealed differences in the processes of deformation and destruction of reinforced beams. The results will contribute to making rational project decisions and for choosing a relevant technique of strengthening timber beams with carbon composite materials
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Mazurchuk, Serhii, Yuriy Tsapko, Oleksandra Horbachova, and Alexey Tsapko. "Justification of the Manufacturing Plywood Technology on Dry Glues." Key Engineering Materials 953 (August 25, 2023): 33–41. http://dx.doi.org/10.4028/p-b9ku9k.
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The use of environmentally safe technologies in the plywood production encourages the use of dry powder mixtures of polyester resin used for gluing veneer. The work presents the results of studies of some characteristics for plywood, which was product on the basis of polyester resin. As a result of experimental studies, the expediency of manufacturing plywood on dry adhesive mixtures of polyester resins has been substantiated. Since the limit of static bending strength along the fibers of the plywood face layers exceeds the standard value. The resistance to chipping on the glued layer of plywood also did not decrease and exceeds the standard value both after dry exposure and after soaking. The studied plywood is characterized by reduced moisture absorption properties. This is due to the thermal modification of the veneer. It was established that with an increase in the modification temperature to , moisture absorption decreases by more than 3.5 %. Thus, the obtained research results allow us to purposefully solve further problems related to the creation of new technologies for the wood products manufacture and to determine the conditions of their operation at various facilities.
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Nadir, Yashida, and Nagarajan Praveen. "Experimental Investigation of the Mechanical Properties of Jointed Rubber Wood Using Two Types of Adhesives." Applied Mechanics and Materials 357-360 (August 2013): 844–53. http://dx.doi.org/10.4028/www.scientific.net/amm.357-360.844.
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Wood, a potentially good construction material in terms of sustainability, has less structural use now in India. Due to easy availability, low cost and good working quality there is a scope for the value addition of rubber wood in the Country. Finger jointing technology benefits high economic advantage by upgrading rubber wood. There is a dearth of information for the influence of adhesive on the mechanical properties of jointed rubber wood in India. This study was conducted to evaluate the effects of adhesive type on the end jointing and face gluing of rubber wood. The end jointing adopted for the study was the most common finger joint configuration of the wood industry in Kerala, the largest producer of rubber wood in the Country. The adhesives were polyvinyl acetate (PVAc) and phenol resorcinol formaldehyde (PRF). The face gluing evaluation was done based on the adhesive bond strength and percentage wood failure. The integrity of glue types to delamination was also tested .The results of the study have indicated glue type has no statistically significant effect on modulus of rupture, modulus of elasticity of finger joints and the shear strength of adhesive bond in the dry stage with the same wood failure percentage. The joint efficiency of PRF adhesive was superior to PVAc in tension and compression of finger joints. The PRF adhesive exhibited excellent performance in the exterior exposure condition durability test.
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Fu, Ping, Xiao Peng Zhao, Xiao Feng Su, and Hao Yan. "Research on the Passenger Car Tire Retreading Technology and Processing." Key Engineering Materials 717 (November 2016): 86–90. http://dx.doi.org/10.4028/www.scientific.net/kem.717.86.
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Tire retreading refers to the waste tire repair, polishing and gluing, pressing process, and then curing,which restore its use value. So far it is one of the most direct and most effective and the most economic way of the utilization of waste tire. Normally, because of the high profit, the retreading of truck tire and engineering tire had received much attention, while that of passenger car tire had been ignored. However, as the number of car has been increasing for many years, the passenger tire retreading is urgently needed. In this article, after the further study of related retreading theory, it is determined by using the prevulcanization retreading technology for renovation of radial tire. The renovation process including the carcass of tire inspection, repair, polishing, brush glue, tread molding (including post pad, pre vulcanized tread and pressed), vulcanization, final inspection. And the related equipment has been developed for the passenger tire retreading molding, include lifting inspection machine, model profile grinding machine, winding machine, model setting vulcanizing machine and tread of orientation of short fiber extrusion and other special equipment. This research solved the problem of backward technology, the short service life and poor quality.
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Zaharia, Sebastian Marian, and Rareş Ioan Ştefăneanu. "Design and Manufacturing Process for a Ballistic Missile." Scientific Bulletin 21, no. 2 (2016): 140–46. http://dx.doi.org/10.1515/bsaft-2016-0049.
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Abstract Designing a ballistic missile flight depends on the mission and the stress to which the missile is subject. Missile’s requests are determined by: the organization of components; flight regime type, engine configuration and aerodynamic performance of the rocket flight. In this paper has been developed a ballistic missile with a smooth fuselage type, 10 control surfaces, 8 directional surfaces for cornering execution, 2 for maneuvers of execution to change the angle of incidence and 4 stabilizers direction. Through the technology of gluing and clamping of the shell and the use of titanium components, mass of ballistic missile presented a significant decrease in weight and a structure with high strength.
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Chen, Dexin, Zhixin Kang, Hidetoshi Hirahara, and Wei Li. "Interfacial nanoconnections and enhanced mechanistic studies of metallic coatings for molecular gluing on polymer surfaces." Nanoscale Advances 2, no. 5 (2020): 2106–13. http://dx.doi.org/10.1039/d0na00176g.
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Носоновских, К. В., М. В. Газеев, А. В. Свиридов та С. В. Щепочкин. "ИССЛЕДОВАНИЕ ВЛИЯНИЯ АЭРОИОНИЗАЦИИ НА ПРОЧНОСТЬ КЛЕЕВОГО СОЕДИНЕНИЯ ДРЕВЕСИНЫ, ФОРМИРУЕМОГО КЛЕЕВОЙ КОМПОЗИЦИЕЙ НА ОСНОВЕ ЭПОКСИДНОЙ СМОЛЫ". Леса России и хозяйство в них, № 4(91) (24 грудня 2024): 168–77. https://doi.org/10.51318/fret.2024.91.4.018.
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При склеивании массивной древесины для повышения производительности и сокращения времени отверждения клеевого шва применяют различные методы интенсификации склеивания, например такие, как высокочастотный, инфракрасный, конвективный или контактный нагрев, которые являются энергозатратными. В настоящее время актуальна разработка новых энергоэффективных способов склеивания и высокопрочных клеевых композиций, обладающих минимальным временем отверждения. В работе рассматривается совершенствование технологии склеивания массивной древесины с применением аэроионизации. Аэроионизация в настоящее время получила широкое применение в медицине для очистки воздуха и обеззараживания помещений. При аэроионизации воздух насыщают отрицательными ионами кислорода, которые формируются в электрическом поле электроэффлювиального аэроионизационного устройства. Цель работы – исследовать влияние аэроионизации на процесс склеивания массивной древесины клеевой композицией на основе эпоксидной смолы. При проведении исследований определяли краевой угол смачиваемости поверхности древесины эпоксидной смолой, результаты определения которого подтверждают высокое адгезионное взаимодействие эпоксидной смолы и поверхности древесины. Поэтому применение данной смолы в качестве основы для клеевой композиции целесообразно. Испытания склеенных образцов на скалывание вдоль клеевого шва проводили в соответствии с ГОСТ 33120–2014. Исследования в данной области актуальны и целесообразны, а ранее проведенные эксперименты применения аэроионизации в технологии деревообработки показали положительное ее влияние на процессы отверждения пленкообразующих веществ лакокрасочных и клеевых композиций. When gluing solid wood, various methods of bonding intensification are used to increase productivity and reduce the curing time of the adhesive joint, for example, such as high-frequency, infrared, convective or contact heating, which are energy-consuming. Currently, the development of new energy-efficient bonding methods and high-strength adhesive compositions with minimal curing time is relevant. The paper considers the improvement of the technology of gluing solid wood using aeroionization. Aeroionization is currently widely used in medicine for air purification and disinfection of premises. During aeroionization, the air is saturated with negative oxygen ions of the air, which are formed in an electric field by an electroeffluvialaeroionization device. The purpose of the work is to investigate the effect of aeroionization on the process of gluing solid wood with an epoxy resin-based adhesive composition. During the research, the marginal wettability angle of the wood surface with epoxy resin was determined, the results of which confirm the high adhesive interaction of the epoxy resin to the wood surface. Therefore, the use of this epoxy resin as a base for an adhesive composition is advisable. Tests of glued samples for cleavage along the adhesive seam were carried out in accordance with GOST 33120–2014. Research in this area is relevant and appropriate, and previous studies of the use of aeroionization in woodworking technology have shown its positive effect on the curing processes of fi lm-forming substances of paint and adhesive compositions.
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Jia, Bin, Jin Xue, Jun Mo, and Chun Tao Zhang. "Experimental Study on Flexural Behavior of Damaged Reinforced Concrete Beams Strengthened with CFRP." Applied Mechanics and Materials 507 (January 2014): 306–10. http://dx.doi.org/10.4028/www.scientific.net/amm.507.306.
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Abstract. In the view of the project problem that concrete strength grade is lower than C15in reinforced concrete beam, we consider a composite technology strengthened with CFRP, and do some monotonic loading experiments on these beams with eight different methods, and discuss the beam force behavior including ultimate bearing capacity, failure model and crack propagation. This paper finds out that the composite reinforced scheme, which with ticking trough, planting steel displaces concrete and gluing and then pasting CFRP, has a remarkable improvement than pasting CFRP immediately, and that there is a high coherence workability in the old and new concrete, so we can give full play to their role as the CFRP high strength.
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Du, Chun Gui. "A Study on Sliced Bamboo Veneer-Chinese Fir Glulam Composite Panel." Advanced Materials Research 168-170 (December 2010): 2033–36. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.2033.
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Previous studies have indicated that Chinese fir glulam has many defects on surface: color is singleness, knot is more, surface is roughness, etc. This paper presents a study on the manufacturing technology of sliced bamboo veneer-Chinese fir glulam composite panel. Sliced bamboo veneer were glued on both the top and bottom surface of Chinese fir glulam. The results showed: (1)sliced bamboo veneer can beautify the surface of Chinese fir glulam; (2)sliced bamboo veneer should directly overlay on the surface of Chinese fir glulam, and it is not suitable back lining non-woven fabric in gluing; (3)the optimal composite technological parameters are: unit pressure: 0.7MPa; hot pressing temperature: 100°C; hot pressing time: 4min.
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Dmytro, Ruban, Kraynyk Lubomir, Ruban Hanna, et al. "Development of bus body technologies in terms of corrosion and durability." Eastern-European Journal of Enterprise Technologies 3, no. 1 (117) (2022): 67–75. https://doi.org/10.15587/1729-4061.2022.259927.
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The object of this study is the technology of bus bodies and the formation of recommendations for design bodywork subject to the regulated durability of the body introduced into production. Advancing the technology of manufacturing bus bodies implies improving anti-corrosion protection, using new polymeric materials, and reducing the length of welds. The issue of corrosion resistance of bus bodies has been considered. It is established that the use of new polymeric materials will increase the corrosion resistance of bus bodies while existing technologies weakly protect against corrosion (resource up to 5 years). The peculiarity of this study is that the adhesion of new materials has been tested, with artificial aging, which confirms the durability of glued joints. According to the old technology, the body was exposed to anticorrosive treatment after welding the cladding with uncovered places left between the frame and body cladding, which provoked corrosion. The main idea is that in the new technology, the cladding is welded or glued after the body frame is fully coated with primer. New technologies and materials not used in the automotive industry have been proposed. Three variants of technologies were put into production. First: the welding of steel zinc sheets. In welding sites, the frame is covered with conductive primer. It was implemented for school buses (after 7 years, without damage). Second: gluing steel zinc sheets. It was implemented for city buses (after 6 years, without damage). Third: gluing sheets from composite materials not used in the automotive industry. The transition to new adhesive cladding technologies from composite corrosion-resistant materials instead of steel sheet, reduces by 2.5–3 times the length of welds (up to 20 years without damage). The studies have confirmed the strength of glued joints (cohesion rupture exceeds 95 %). The reliability of glued joints and high corrosion resistance of the body have been confirmed in the operation of buses. The scope of practical use of the results: bus-building plants. The reported results are suitable for production of all types while cataphoretic coatings are only for mass production
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Liu, Jian Ying, and Jun Liu. "Application of Laser Heat Treatment Process on the Surface Treatment of Pipe Threaded." Advanced Materials Research 490-495 (March 2012): 3172–76. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.3172.
Full textAbstract:
The oil pipe is the special pipe of oil wells that is put into the wells to produce fluid or inject liquid. Because the pipe was put under the ground deeply, the higher strength and sealing are request. Therefore, the accuracy and strength of the connecting thread are required. Moreover, because of the oil wells need to be repaired frequently when they work, the shackle times are the important factor of the production life of the oil pipe. The development of the oil pipe is always blocked by the phenomenon of oil's gluing. As the remarkable feature of the Laser heat treatment process technology and the increasing of productions of the domestic laser devices, the laser heat treatment process technology was applied to the surface of the oil threaded to improve the integrated mechanical properties of oil pipe products and to extend its work life.
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Kim, Jae-Gyu, Bum-Soo Kim, Bo Jiang, and Byoungil Kim. "Adhesion Stability According to Adhesion Area of Traditional Tile Gluing Method." Buildings 14, no. 4 (2024): 1117. http://dx.doi.org/10.3390/buildings14041117.
Full textAbstract:
In this study, verification was conducted through experiments to identify problems caused by traditional attachment methods in order to highlight the need for a suitable attachment method for new tile types according to changes in materials, production technology, and demand. The stability of adhesion strength was evaluated by subdividing the size of the adhesion area and adhesion strength measurement method for the country-type attachment method. The adhesion area on the back of the tile was divided into 60% and 80%, and the test specimens used in the experiment were tested for partial adhesion strength (Ta-1), overall adhesion strength (Ta-2), and adhesion strength after splitting (Ta-3), and the results were derived. As a result of conducting the adhesion test presented in the current national building standard tile specification (KCS 41 48 01) for 80% of the backfill area, the average adhesive strength was 0.85 N/mm2, and the standard strength was 0.39 N/mm2. However, as a result of the arithmetic average test of the adhesive strength of all tiles or cutting of the entire tile, rather than the partial adhesion test method of the mortar-attached part, it was confirmed that the adhesive strength was about −20% less than the current KCS 0.39 N/mm2.
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Zeng, Yong-Jie, Sheng-Jye Hwang, Yu-Da Liu, and Chien-Sheng Huang. "Mold Flow Analysis of Motor Core Gluing with Viscous Flow Channels and Dipping Module." Polymers 13, no. 13 (2021): 2186. http://dx.doi.org/10.3390/polym13132186.
Full textAbstract:
A motor core is formed by stacking iron sheets on top of each other. Traditionally, there are two stacking methods, riveting and welding, but these two methods will increase iron loss and reduce usage efficiency. The use of resin is the current developmental trend in the technology used to join iron sheets, which has advantages including lowering iron loss, smoothing magnetic circuits, and generating higher rigidity. The flow behavior of resin in gluing technology is very important because it affects the dipping of iron sheets and the stacking of iron sheets with resin. In this study, a set of analytical processes is proposed to predict the flow behavior of resin through the use of computer-aided engineering (CAE) tools. The research results are compared with the experimental results to verify the accuracy of the CAE tools in predicting resin flow. CAE tools can be used to predict results, modify modules for possible defects, and reduce the time and costs associated with experiments. The obtained simulation results showed that the filling trend was the same as that for the experimental results, where the error between the simulation results for the final dipping process and the target value was 0.6%. In addition, the position of air traps is also simulated in the dipping process.
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Bernat, Tomasz. "Evaluation of Thermal Insulation of the Gastronomic Refrigeration Furniture Prototype." Agricultural Engineering 25, no. 1 (2021): 83–98. http://dx.doi.org/10.2478/agriceng-2021-0007.
Full textAbstract:
Abstract An innovative method of insulation by injection to a cooling tank was investigated with consideration of a sustainable development need during production of thermo-insulation materials. An insulation material consisted of polyurethane foam. The manufacturer has chosen HFO gases for filling in the pores, since this is a product with a low environmental impact. HFO gases have a zero potential for destruction of the ozone layer and an extremely low global warming potential. Cooling tanks insulated with modern technologies of injection of polyurethane foam were investigated with regard to heat permission. They were also tested on account of occurrence of heat leakage bridges. The investigation covered also cooling furniture insulated with a conventional method of gluing ready-made polyurethane boards. The tests showed that a modern insulation technology influences reduction of the heat permission coefficient towards the presently applied technology. The investigated insulation of cooling furniture did not prove any heat leakage bridges. Therefore, it may be concluded that the technological process is correct. Cooling tanks manufactured in the present insulation technology did not show the occurrence of heat leakage bridges.